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| author | Michael Niedermayer <michaelni@gmx.at> | 2004-02-13 17:54:10 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2004-02-13 17:54:10 +0000 |
| commit | 9c3d33d67f2260d5ddc888e8ea380c3913e38a72 (patch) | |
| tree | 46c82202d3f7c2964f7cace9e1131e97ada124bb /libavcodec/mpegvideo.h | |
| parent | 7984082a08cf2119da3433c245b72a91020b879d (diff) | |
| download | ffmpeg-9c3d33d67f2260d5ddc888e8ea380c3913e38a72.tar.gz | |
multithreaded/SMP motion estimation
multithreaded/SMP encoding for MPEG1/MPEG2/MPEG4/H263
all pthread specific code is in pthread.c
to try it, run configure --enable-pthreads and ffmpeg ... -threads <num>
the internal thread API is a simple AVCodecContext.execute() callback which executes a given function pointer with different arguments and returns after finishing all, that way no mutexes or other thread-mess is needed outside pthread.c
Originally committed as revision 2772 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/mpegvideo.h')
| -rw-r--r-- | libavcodec/mpegvideo.h | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h index aeeb8866a6..6eb3a0fcff 100644 --- a/libavcodec/mpegvideo.h +++ b/libavcodec/mpegvideo.h @@ -47,6 +47,8 @@ enum OutputFormat { #define MAX_FCODE 7 #define MAX_MV 2048 +#define MAX_THREADS 8 + #define MAX_PICTURE_COUNT 15 #define ME_MAP_SIZE 64 @@ -285,6 +287,10 @@ typedef struct MpegEncContext { Picture **input_picture; ///< next pictures on display order for encoding Picture **reordered_input_picture; ///< pointer to the next pictures in codedorder for encoding + int start_mb_y; ///< start mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y) + int end_mb_y; ///< end mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y) + struct MpegEncContext *thread_context[MAX_THREADS]; + /** * copy of the previous picture structure. * note, linesize & data, might not match the previous picture (for field pictures) @@ -332,7 +338,10 @@ typedef struct MpegEncContext { uint8_t *cbp_table; ///< used to store cbp, ac_pred for partitioned decoding uint8_t *pred_dir_table; ///< used to store pred_dir for partitioned decoding uint8_t *allocated_edge_emu_buffer; - uint8_t *edge_emu_buffer; ///< points into the middle of allocated_edge_emu_buffer + uint8_t *edge_emu_buffer; ///< points into the middle of allocated_edge_emu_buffer + uint8_t *rd_scratchpad; ///< scartchpad for rate distortion mb decission + uint8_t *obmc_scratchpad; + uint8_t *b_scratchpad; ///< scratchpad used for writing into write only buffers int qscale; ///< QP int chroma_qscale; ///< chroma QP @@ -487,6 +496,10 @@ typedef struct MpegEncContext { int misc_bits; ///< cbp, mb_type int last_bits; ///< temp var used for calculating the above vars + /* temp variables for picture complexity calculation */ + int mc_mb_var_sum_temp; + int mb_var_sum_temp; + /* error concealment / resync */ int error_count; uint8_t *error_status_table; ///< table of the error status of each MB @@ -565,9 +578,6 @@ typedef struct MpegEncContext { int intra_dc_threshold; ///< QP above whch the ac VLC should be used for intra dc PutBitContext tex_pb; ///< used for data partitioned VOPs PutBitContext pb2; ///< used for data partitioned VOPs -#define PB_BUFFER_SIZE 1024*256 - uint8_t *tex_pb_buffer; - uint8_t *pb2_buffer; int mpeg_quant; int t_frame; ///< time distance of first I -> B, used for interlaced b frames int padding_bug_score; ///< used to detect the VERY common padding bug in MPEG4 @@ -908,6 +918,7 @@ void mjpeg_encode_mb(MpegEncContext *s, DCTELEM block[6][64]); void mjpeg_picture_header(MpegEncContext *s); void mjpeg_picture_trailer(MpegEncContext *s); +void ff_mjpeg_stuffing(PutBitContext * pbc); /* rate control */ |